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  11. Step 6 Background
  12. Step 7 Analyze Your Data
  13. Step 8 What does it mean?
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andf-tem3

Edit 0 19 …

540s Over Time




Broad Question

Does time affect skiing proficiency?

Specific Question


Does repeated practice (completing a 540 every half hour ) improve your freestyle skills?





Variables

external image 2319852529-ski-frontside-540.jpg

Independent Variable:

Time (min)

Dependent Variable:

Rotation (degrease)

Variables That Need To Be Controlled:

The same person jumping
Time that there compleated
Trails to ski

Hypothesis


I hypothesize that I will improve then decline in skill as the day goes on.

Graph of Hypothesis

graph_ujeujeueu.JPG


Experimental Design


I am conducting my experiment because I would like to know if time and repeated practice helps or hurts your skiing proficiencies. I will be conducting my experiment at the king pine ski area. There will be two subjects in my experiment, I will be dong the 540’s and I will have someone measure the angle I rotated. I will have three trials consisting of three days. Because I will be on the mountain I will enter my data into a printed spreadsheet. I will be documenting my experiment at the landing of the jump following the 540. I will prove that I did my experiment by taking videos and pictures.

Materials list

  1. Skis external image park-lane-2.jpg
  2. Snow
  3. Protractor
  4. Jump with a landing
  5. Helmet
  6. Ski boots
  7. Appropriate ski attire
  8. Data table
  9. Watch

Detailed procedure


  1. Go to a ski mountain with a jump.
  2. Have the skier put on the proper ski equipment.
  3. Have the skier ride up the lift.
  4. Have the skier ski down the mountain to the jump.
  5. Have the skier go off the jump and do a 540 rotation.h
  6. Measure angle with a protractor.
  7. Record data into the data table.
  8. Repeat steps 3-7 every half hour, five more times.
  9. Repeat procedure for two more trials.



Background Research


Fatigue is the result of exercise witch makes the body perform less efficiently. Fatigue can occur over both a long and short period of time. Evan an intense practice or a game can give you fatigue.Fatigue also gains slowly over weeks and months of work and practice.
Silverstein, alvin, virginia Silverstein, and robert Silverstein. the muscular system. 1st. brookfield, C.T.: twenty-first centry books, 1994. Print.

Fatigue is when the body lets a muscle rest. every time a muscle contracts it gets gradually weaker but after rest will soon be back to normal. stretching helps prepare muscles for vigures activitys.

"muscular ." the free dictionary . Web. 20 Jan. 2012. <http://medical-dictionary.thefreedictionary.com/muscular+fatigue>.


fatigue can be caused by sadness or depression. long term fatigue can by caused by an ilness.
"weakness and fatigue." Web MD. 12 Jan. 2011. Web. 20 Jan. 2012. <http://www.webmd.com/a-to-z-guides/weakness-and-fatigue-topic-overview>.

References

"fatigue." faqs.org . the gale group inc. , 2012. Web. 18 Jan. 2012. <http://www.faqs.org/sports-science/Dr-Fo/Fatigue.html>.

"muscular ." the free dictionary . Web. 20 Jan. 2012. <http://medical-dictionary.thefreedictionary.com/muscular+fatigue>.

Silverstein, alvin, virginia Silverstein, and robert Silverstein. the muscular system. 1st. brookfield, C.T.: twenty-first centry books, 1994. Print.

"weakness and fatigue." Web MD. 12 Jan. 2011. Web. 20 Jan. 2012. <http://www.webmd.com/a-to-z-guides/weakness-and-fatigue-topic-overview>.
http://www.coloradoskiauthority.com/images/keystone/terrain-park/park-lane-2.jpg
http://www.djibnet.com/photo/2319852529-ski-frontside-540.jpg

Results

The purpose of the experiment was to find out if repeated practice helps improve one’s skill in freestyle skiing, especially spins. The results showed that repeated practice did help but then hurt a person skill as the day went on. one example is the first trial -1,-7,-9,-3,1,0 degrees. A perfect spin would be zero degrees and most of the numbers were fairly close.

Data table

Graphs


andrew_science_fair_graph.JPG


Photos


GOPR0693.jpg







GOPR0696.jpg










GOPR0697.jpg




Data Analysis


Conclusion


My hypothesis was that I would improve then decline in freestyle skill as the day went on. My hypothesis was correct. The 540 rotation was far from zero degrees and became closer to zero as the day went on, towards the end of the day, the spins became more off. My tests went very smoothly. There is a relationship between the independent and dependent variables because the rotation changed over time. A pattern in my data was that the rotation degrees were big, then got smaller and returned to larger numbers again. Everything went without a problem and the tests were completed on time. If I could improve my experiment I would do 540s every run instead of every half hour. An interesting future study might be freestyle skills in bright light versus low light.





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